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Apparatus and method for detection and characterization of particles using light scattered therefrom

Patent ·
OSTI ID:7092905

Apparatus and method for detection and characterization of particles using light scattered therefrom. Differential phase measurements on scattered light from particles are possible using the two-frequency Zeeman effect laser which emits two frequencies of radiation 250 kHz apart. Excellent discrimination and reproducibility for various pure pollen and bacterial samples in suspension have been observed with a single polarization element. Additionally, a 250 kHz beat frequency was recorded from an individual particle traversing the focused output from the laser in a flow cytometer. 13 figs.

Research Organization:
Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
Assignee:
TIC; ERA-14-001884; EDB-88-187398
Patent Number(s):
PATENTS-US-A6028987
OSTI ID:
7092905
Country of Publication:
United States
Language:
English